foo.cc: In function 'int main()':
foo.cc:21:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   if(cnt>maxcnt)
   ^~
foo.cc:22:14: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   maxcnt=cnt;maxx=xmin;
              ^~~~
foo.cc:5:6: warning: variable 'maxx' set but not used [-Wunused-but-set-variable]
  int maxx;
      ^~~~

自豪的采用HydroJudge(https://github.com/hydro-dev/Hydro)进行评测。